Issue/278/fast transient module

fink_science/fast_transient_rate/__init__.py

@@ -0,0 +1,22 @@
+from pyspark.sql.types import DoubleType, BooleanType
+
+rate_module_output_schema = {
+    # the first 5-sigma detection in the alert history
+    "jd_first_real_det": DoubleType(),
+    # The delta-time between the current jd of the alert and the jd_first_real_det,
+    # if above 30, the jd_first_real_det is no longer reliable.
+    "jdstarthist_dt": DoubleType(),
+    # The magnitude rate computed between the last available measurement
+    # and the current alerts. The mag_rate band are the same of the current alert.
+    "mag_rate": DoubleType(),
+    # The magnitude rate error computed using a random sampling in the magnitude sigma of the two alerts.
+    "sigma_rate": DoubleType(),
+    # The lowest mag_rate computed from the random sampling
+    "lower_rate": DoubleType(),
+    # The highest mag_rate computed from the random sampling
+    "upper_rate": DoubleType(),
+    # The delta-time between the last alert and the current alert
+    "delta_time": DoubleType(),
+    # if True, the magnitude rate has been computed with an upper limit.
+    "from_upper": BooleanType(),
+}